28180980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2269}}^1$

素因数の和:2310

約数の個数: 96

約数和(自身を含む): 91526400

約数和(自身を除く): 63345420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 45, 46, 54, 60, 69, 90, 92, 108, 115, 135, 138, 180, 207, 230, 270, 276, 345, 414, 460, 540, 621, 690, 828, 1035, 1242, 1380, 2070, 2269, 2484, 3105, 4140, 4538, 6210, 6807, 9076, 11345, 12420, 13614, 20421, 22690, 27228, 34035, 40842, 45380, 52187, 61263, 68070, 81684, 102105, 104374, 122526, 136140, 156561, 204210, 208748, 245052, 260935, 306315, 313122, 408420, 469683, 521870, 612630, 626244, 782805, 939366, 1043740, 1225260, 1409049, 1565610, 1878732, 2348415, 2818098, 3131220, 4696830, 5636196, 7045245, 9393660, 14090490, 28180980]

約数ペア:

[(1, 28180980), (2, 14090490), (3, 9393660), (4, 7045245), (5, 5636196), (6, 4696830), (9, 3131220), (10, 2818098), (12, 2348415), (15, 1878732), (18, 1565610), (20, 1409049), (23, 1225260), (27, 1043740), (30, 939366), (36, 782805), (45, 626244), (46, 612630), (54, 521870), (60, 469683), (69, 408420), (90, 313122), (92, 306315), (108, 260935), (115, 245052), (135, 208748), (138, 204210), (180, 156561), (207, 136140), (230, 122526), (270, 104374), (276, 102105), (345, 81684), (414, 68070), (460, 61263), (540, 52187), (621, 45380), (690, 40842), (828, 34035), (1035, 27228), (1242, 22690), (1380, 20421), (2070, 13614), (2269, 12420), (2484, 11345), (3105, 9076), (4140, 6807), (4538, 6210)]